title: Optical fiber interferometer array for scanless Fourier-transform spectroscopy.
abstract: We report a spatial heterodyne Fourier-transform spectrometer implemented with an array of optical fiber interferometers. This configuration generates a wavelength-dependent stationary interferogram from which the input spectrum is retrieved in a single shot without scanning elements. Furthermore, fabrication and experimental deviations from the ideal behavior of the device are corrected by spectral inversion algorithms. The spectral resolution of our system can be readily scaled up by incorporating longer optical fiber delays, providing a pathway toward surpassing current spectroscopy resolution limits.
authors.affiliation: Departamento de Óptica, Facultad de Ciencias Físicas, Universidad Complutense de Madrid, Madrid 28040, Spain. avillafr@pdi.ucm.es
authors.forename: Aitor V
authors.initials: AV
authors.lastname: Velasco
authors.forename: Pavel
authors.initials: P
authors.lastname: Cheben
authors.forename: Mirosław
authors.initials: M
authors.lastname: Florjańczyk
authors.forename: Jens H
authors.initials: JH
authors.lastname: Schmid
authors.forename: Przemek J
authors.initials: PJ
authors.lastname: Bock
authors.forename: Jean
authors.initials: J
authors.lastname: Lapointe
authors.forename: André
authors.initials: A
authors.lastname: Delâge
authors.forename: Siegfried
authors.initials: S
authors.lastname: Janz
authors.forename: Martin
authors.initials: M
authors.lastname: Vachon
authors.forename: María L
authors.initials: ML
authors.lastname: Calvo
authors.forename: Dan-Xia
authors.initials: DX
authors.lastname: Xu
authors.forename: Svatopluk
authors.initials: S
authors.lastname: Civiš
mesh_terms: D005583:Fourier Analysis; D007834:Lasers; D055100:Optical Fibers; D013057:Spectrum Analysis / Q000295:instrumentation*